Which line in this configuration prevents the HelpDesk user from modifying the interface configurati

Refer to the exhibit.

Which line in this configuration prevents the HelpDesk user from modifying the interface configuration?

A.
Privilege exec level 9 configure terminal

B.
Privilege exec level 10 interface

C.
Username HelpDesk privilege 6 password help

D.
Privilege exec level 7 show start-up